Myth of the fat dodo. The birdâs obesity, slowness and lack of intelligence are commonly given as reasons for its alleged evolutionary inferiority. Dodoes were for years considered not just large, but grossly overweightâto the point that they not only couldnât fly, but could hardly run from their enemies.
The HPV strains that Gardasil protects against are sexually transmitted. The vaccine was approved in the US on June 8, 2006 by the U.S. Food and Drug Administration (FDA). In 2008, Gardasil was approved in 41 of U.S. states. The Gardasil vaccine has also been approved in 120 other countries.
Oral polio vaccine (OPV) is an attenuated vaccine, produced by the passage of the virus through non-human cells at a sub-physiological temperature, which produces spontaneous mutations in the viral genome. Oral polio vaccines were developed by several groups, one of which was led by Albert Sabin. Other groups, led by Hilary Koprowski and H.R. Cox, developed their own attenuated vaccine strains. In 1958, the National Institutes of Health created a special committee on live polio vaccines.